Carbureter.



R. LEDUG. OARBUBBTEB.

APPLICATION FILED AUG. 5, 1913.

1,1 19,1 81 Patented Dec. 1, 1914.

3 SHEETS-SHEET 1.

WITNESSES IVNVELNTOR RZ/J Q RAOUL LEDUC M BY 6 ATTY.

"HE NORRIS PETERS 60.. PHOTO-LITHO, WASHINGTON. D. L

R. LEDUG.

CARBUBETER.

APPLICATION TILED AUG. 5, 1913.

1,1 19,181 Patented Dec. 1, 1914.

8 SHEETS-SHEET 2.

WITTNESSES INYENTCR 77/ @ffl v RAouL LEDUC BY V A TTY.

THE NORRIS PETERS 120.. PHOTOJJTHII. WASHINGTON. D. C.

R. LEDUG.

OARBUBETER.

ABPLIOATION FILED AUG. 5, 1913.

1, 1 19, 181 Patented Deb. 1,1914.

3 SHEETS-SHEET 3.

rim

INVENTOR RAOUL LEDUC ATTY.

"HE NORRIS PETERS C0, FHOTO'LITHQ, WASHINGTON, D. C

naouL Lianne, onnoU N, IFRA'NCE.

To all whom it may concemw Be it knownthat I, RAOUIr-LEDUG, a

citizen of the Republic of France, and residing at Roue11,I*rance, have invented new and useful Improvements in or Relating to 'Garbureters for Explosion-Engines, ofwhich the following is a specification. g

.The invention has forits subject matter an improved carbu'reter for explosion engines. ,w According tof thezr resent. invention, a regulating mechanism represented by a rotary valve formedof two hollow cylinders placed end to end, one of them controlling the passage of theexplosive mixture and the other two supply inlets for additional air in proportion to thespeed, is arranged above the carbureting chamber;

On the accompanying drawings a carbureter is represented in accordance with the invention. Y

Figure 1 is a verticalsectionof the said carbureter; Fig. 2 is a section onthe line A--A of Fig. 1; Fig. 3 is a section on the line BB of Fig. 2'; Fig. 4 is an end view as seen from one side; Fig. 5 is an end view as seen from the opposite side.

At the lower end of the apparatus is a tank 1 fed with fuel by'meansof a conduit 2 and containing a float 3 which, when in high position, presses the inlet valve 4 against its seat. Inthecover 5 of the tank 1 extending therethrough is mounted a tube 11 the lower part of which extends into the tank and terminates near the bottom thereof while its upper part is curved in the horizontal vdirection and leads outabove-the tube, terminating in a sprayingjnozzle 1'0.

extending over the open top ofthe tube 7. The tube 11 is open at its lower end 12 so as to admit the fuel. The tube 7 extends through the bottom of the tank '1 and forms ferent/ dimensions and hasits ends closed bythe plates 22 and23. Theplate 23 is supplied, with an opening 25 having an en-' larged portion 23. The cylinder 9 has an upwardly extending portion 9 at the upper part thereof which forms channel 35 which v is the outlet for the combustible mixture.

Above the tube 7 is arranged the rotary valve mechanism. WVithin the cylinder 9 a oanisunnrnn. I

Spectficatioh of Letters rate .Applieation filed August 5,1913. Serial No. 783,226.

in closed working Patented Dec. 1, 1914..

rotary valve is disposed, thei-shaft 30 of which extends through the opening 25 in the plate 23 and is solidly connected with a lever8. This valveis formed bytwo cylindrical bearing surfaces13 and 14: of differcut diameter to co-act with the diameters.

ofthe bores of the cylinder.-- The part 13 the present instance having the larger diameter. Agalnst the face of the part 13' or against the end of the valve the pressure of a spring 17 carried in the opening 23 is continually applied so as to hold the valve position against the plate 22. 1 s

The-cylinder 9 forms between itsv base 5 and bores and beneath the part 13 of the valve proper, a chamber 29 in which the upper portionof the aforementioned initial airintake tube, and the spraying nozzle are situated. 'A conduit 21 communicates with this chamber. The part 13 of the valve presents a cutout portion 18 situated above the chamber 29. The solid portion of the part 13 iscapable of shutting more or less of the air intake opening, leading to the enportion provides a small passage for the gine. A notch 28 arranged in the said solid gas in the position of rest. The cylinder 14:,

has a cutout portion 19 situated aboveand communicating with the conduit 21 The cutout portion 19 communicates with'ylongitudinal channels 26 arranged in the part 14;,

and these channels in turn are adapted to communicate with orifices 27 arranged in any suitable form in the plate 22 and servingas air inlets. The portion of the rotary ":V-LlVG cylinder 9 which surrounds the rotating part 14 shows also an orifice 24 adapted to communicate with the atmosphere and with passage'21 through the cutout portion 19. The plates 22 and 23 which close the cylinder ends may be secured to the cylinder by any suitable means suchas screws 22 and 23 1' I The lever 8 is supplied on its under surface with stops 8' adapted .to coact with adjusting screw 82 to assist in the regulation of the valve.

The operation of the device may be briefly described as follows: In the position represented in Figs. 1 and 2, which is a position of rest, the conduit 35 communicates with the chamber 29 by the narrow passage left at 20 by the notch 28 in such a manner as to allow of the starting and running of the engine at a lowspeed.

To increase the speed the valve turned in the direction of the arrow of Fig.1. The

part 13 gradually opens the orifice of the time the orifices 26 gradually come into communication with the orifices 27 and the cutout portion 19 connects with the orifice 24. Through these orifices a supply of additional air is brought about, and this air, being admitted around the spraying nozzle allows the running of the engine at vhigh power under economic conditions What I claim and desire to secure by Letters Patent isz' I I In a carbureter having the usual float chamber and mixing chamber of an outlet for the combustible mixture, an atomizer,

Copies of this patent may be obtained and for" the purpose specified."

opens, and for supplying-additional air to the combustible mixture comprising a" cylinder'disposed between said mixing chamber and combustible mixture 'outlet, a

rotary valve within said cylinder, a trans verse. passage 11n said valve, an opening in the side wall of saidcylind'er with which said transverse passage is adapted to coact, openings in the end wall of said cylinder, longitudinal passages in said valve communicating at one end with the transverse passage and adapted to register with said end wall openingswhen the valve is opened'as In testimonywhereof I afli my in presence of two witnesses. a

I I RAOUL LEDUG.

signature Witnesses:

Lou s FERRI, ERNEST Fnnernyfim five cents each, by a d d resslng thefffl ommissioner o1 latents, Washington, D. C. 

